What Is Medicare Part D?
Medicare Part D is the prescription drug benefit within the Medicare program. It's provided by private insurance companies approved by Medicare, not by the government directly. If you enroll in Original Medicare (Parts A and B) plus a Medigap plan, you'll need a separate Part D plan for medication coverage — Medigap does not include drug coverage.
In 2026, Part D plans in Florida range from $0 to $100+ per month depending on the drugs covered, your pharmacy network, and your county. The average Florida Part D premium is approximately $40–$60/month.
When to Enroll in Part D
Enroll in Part D during your Initial Enrollment Period — the same 7-month window around your 65th birthday when you sign up for Medicare Parts A and B. Do not delay. Missing your enrollment window results in a permanent late enrollment penalty: 1% of the national base premium for every month you could have had coverage but didn't. That penalty lasts for as long as you have Part D.
If you have creditable prescription drug coverage through an employer or union, you can delay Part D without penalty. Confirm your current coverage is 'creditable' before skipping enrollment.
How to Choose a Part D Plan in Florida
The right Part D plan depends on your specific medications. Steps to choose:
- List all your current prescriptions — name, dosage, and frequency.
- Use Medicare's Plan Finder at medicare.gov/plan-compare to see which Florida plans cover your drugs.
- Compare total annual cost — premium + annual deductible + estimated copays for your actual medications. The cheapest premium is often not the lowest total cost.
- Check your preferred pharmacy. Plans have preferred pharmacy networks where your copays are lower.
- Check the formulary tier. Plans organize drugs into tiers — lower tiers cost less. Make sure your medications are on the formulary.
Part D in 2026: Key Changes Florida Seniors Should Know
2026 brought significant improvements to Part D thanks to the Inflation Reduction Act:
- $2,000 annual out-of-pocket cap — once you hit $2,000 in drug costs, your Part D plan pays 100% for the rest of the year.
- Insulin capped at $35/month — regardless of plan or coverage phase.
- Medicare Prescription Payment Plan — spread your drug costs across monthly payments instead of paying all at once.
These changes make Part D significantly more predictable for Florida seniors managing expensive medications.